Thursday, Sept. 25th at 1pm EDT
Duration: 1 hour // Attendees eligible for 1 PDH credit
Can't make the date? All who register will receive a link to the recording.
When a pavement fails to reach its expected design life, how do we determine what went wrong? Road building materials, construction technology, and design methods have all improved over time. Yet we still see many roads in poor condition and consistently hear that roads aren’t lasting as long as expected. Why is this?
There are many possible reasons why pavements may fail earlier than expected. These include:
- Traffic loadings above design values – the road is asked to carry more or heavier traffic than that for which it was designed.
- Design practice – in many cases, pavement designs don’t properly characterize and account for the traffic loading.
- Variability in materials and site conditions – while asphalt quality has gotten more consistent over time, other aspects of the job, such as subgrade strength and precipitation, can be much more variable than accounted for in design.
- Subgrade and aggregate base failure – asphalt requires a firm foundation to do its job carrying traffic.
- Reflective cracking – the life of asphalt overlays can be compromised by cracking, allowing water intrusion which compromises the pavement structure.
This isn’t a comprehensive list, but each of these factors can be addressed effectively with a better understanding and innovative design approaches. We don’t have to just throw more materials and money at our pavements to get them to perform better.
In this month’s webinar, we’ll look at these causes of pavement failure and show how they can be addressed with improved design approaches and innovative materials. We’re confident you’ll find something interesting that will help you make your pavements last longer.
Future-Focused Roads Webinar Series:
This series will provide the overview of many improvements in the way we construct roads, measure road performance, maintain roads and the data collection that allows these improvements to be utilized by the asset owners.
Meet Your Presenter:
